Today's forecast: Sunny by day, frost by night

Skies above Greater Los Angeles and the Inland Empire are likely to be clear and sunny today, but temperatures are likely to drop toward or below freezing in many areas overnight.

That means some Southern Californians may see frost on their lawns after they wake up Sunday morning.

The National Weather Service's frost warning extends to communities in the San Fernando and San Gabriel valleys as well as the Inland Empire. The weather is expected to be fairly cold, in the 50s or 40s, over the next few days.

Temperatures are expected to be much colder around Southern California's ski resorts, although forecasts do not call for any new snowfall. Temperatures from Wrightwood to Big Bear Lake are expected to be around the 20s today and may drop into the single digits overnight.